Apache Flink up to 1.11.2 REST Interface file access

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Apache Flink up to 1.11.2. It has been classified as problematic. Affected by this vulnerability is an unknown functionality of the component REST Interface. Performing a manipulation results in file access. This vulnerability is reported as CVE-2020-17519. Moreover, an exploit is present. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Apache Flink up to 1.11.2. This affects an unknown code block of the component REST Interface. The manipulation with an unknown input leads to a file access vulnerability. CWE is classifying the issue as CWE-552. The product makes files or directories accessible to unauthorized actors, even though they should not be. This is going to have an impact on confidentiality. The summary by CVE is:

A change introduced in Apache Flink 1.11.0 (and released in 1.11.1 and 1.11.2 as well) allows attackers to read any file on the local filesystem of the JobManager through the REST interface of the JobManager process. Access is restricted to files accessible by the JobManager process. All users should upgrade to Flink 1.11.3 or 1.12.0 if their Flink instance(s) are exposed. The issue was fixed in commit b561010b0ee741543c3953306037f00d7a9f0801 from apache/flink:master.

The weakness was disclosed 01/05/2021. The advisory is shared at lists.apache.org. This vulnerability is uniquely identified as CVE-2020-17519. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1083 for this issue.

The exploit is shared for download at exploit-db.com. It is declared as attacked. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 05/23/2024 with a due date of 06/13/2024:

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Upgrading to version 1.11.3 or 1.12.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Exploit-DB (49398). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.7

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 9.1
CNA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: File access
CWE: CWE-552 / CWE-425
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Attacked
Download: 🔍

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EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Flink 1.11.3/1.12.0

Timelineinfo

01/05/2021 🔍
01/05/2021 +0 days 🔍
09/09/2024 +1343 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: lists.apache.org
Status: Confirmed

CVE: CVE-2020-17519 (🔍)
GCVE (CVE): GCVE-0-2020-17519
GCVE (VulDB): GCVE-100-167277
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 01/05/2021 15:22
Updated: 09/09/2024 22:30
Changes: 01/05/2021 15:22 (38), 05/23/2024 18:34 (30), 06/10/2024 17:55 (20), 07/24/2024 09:36 (3), 08/14/2024 22:45 (11), 09/09/2024 22:30 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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